<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Promise处理异步任务</title>
    <script src="Promise.js"></script>
</head>
<body>
    <script>
        let p = new Promise((resolve, reject) => {
            setTimeout(() => {
                // resolve('OK');
                reject("error");
            }, 1000);
        });

        let result = p.then(value => {
            // console.log(value);
            // return 123;
            // return new Promise((resolve, reject) => {
            //     // resolve("OKOK");
            //     reject("ERRRR");
            // })
        }, reason => {
            // console.error(reason);
            // return 'loveyou';
            return new Promise((resolve, reject) => {
                // resolve('OK');
                reject("Error");
            })
        });

        console.log(result);
    </script>
</body>
</html>